Constructed with the input of the British Mountaineering Council, Mountain Leader Training UK, Sports Wales, the Met Office and the Welsh Assembly, this goes some way to being a do-it-all app for walkers. There are all sorts of facets to it, including the standard fare such as a Google Maps interface, but a few of this app’s features – including the OS grid reference location, altimeter and, particularly, the Mountain Weather Forecast functions – are pretty sharp. There is also a wealth of information on what to do in an emergency, a few videos on basic hill skills and planning (hosted by TV weather forecaster Sian Lloyd) and some good advice on packing for all weathers. Consequently, it’s a big app – 385MB – so it requires a big wodge of free space on your device, and there are certainly better, more dedicated apps for navigation. However, there’s some good, useful stuff in here, making this a great planning and preventive safety tool, and a good source of mountain weather information.